MTSR(MTSR)
MTSR
NASDAQ • Last print unknown ago
$70.50—Stale · unknown old
| Date | Insider | Title | Type | Price | Shares | Value | Owned After |
|---|---|---|---|---|---|---|---|
| Nov 13, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | $0.00 | 2.23M | $22.305 | -- |
| Nov 13, 25 | ARCH Venture Partners XII, LLC | CTO | Sale | $0.00 | 8.31M | $83.137 | -- |
| Nov 13, 25 | Marso Steven | Officer | Purchase | -- | 17.00K | -- | 17.00K |
| Nov 13, 25 | Marso Steven | Officer | Sale | $0.00 | 17.00K | $0.17 | -- |
| Nov 13, 25 | Marso Steven | Officer | Sale | $0.26 | 21.28K | $5.53K | -- |
| Nov 13, 25 | Marso Steven | Officer | Sale | $29.25 | 120.00K | $3.51M | -- |
| Nov 13, 25 | BERNS PAUL L | CTO | Purchase | -- | 4.03K | -- | 4.03K |
| Nov 13, 25 | BERNS PAUL L | CTO | Sale | $29.25 | 24.19K | $707.50K | -- |
| Nov 13, 25 | BERNS PAUL L | CTO | Sale | $8.18 | 223.43K | $1.83M | -- |
| Nov 13, 25 | BERNS PAUL L | CTO | Sale | $0.00 | 957.56K | $9.576 | -- |
| Nov 13, 25 | Lang Matthew | Officer | Purchase | -- | 12.50K | -- | 12.50K |
| Nov 13, 25 | Lang Matthew | Officer | Sale | $0.00 | 12.50K | $0.125 | -- |
| Nov 13, 25 | Lang Matthew | Officer | Sale | $29.25 | 46.88K | $1.37M | -- |
| Nov 13, 25 | Lang Matthew | Officer | Sale | $17.16 | 325.00K | $5.58M | -- |
| Nov 13, 25 | Population Health Partners GP, LLC | 10 percent owner | Sale | $0.00 | 12.64M | $126.398 | -- |
| Nov 13, 25 | Burow Kristina | CTO | Purchase | -- | 2.69K | -- | 2.69K |
| Nov 13, 25 | Burow Kristina | CTO | Sale | $29.25 | 16.13K | $471.66K | -- |
| Nov 13, 25 | Burow Kristina | CTO | Sale | $0.00 | 8.31M | $83.137 | -- |
| Nov 13, 25 | Burow Kristina | CTO | Sale | $8.18 | 148.95K | $1.22M | -- |
| Nov 11, 25 | Validae Health, L.P. | 10 percent owner | Sale | -- | 12.77M | -- | -- |
| Nov 13, 25 | Pinto Joshua | CTO | Purchase | -- | 2.69K | -- | 2.69K |
| Nov 13, 25 | Pinto Joshua | CTO | Sale | $4.33 | 148.95K | $644.97K | -- |
| Nov 13, 25 | Pinto Joshua | CTO | Sale | $29.25 | 16.13K | $471.66K | -- |
| Nov 13, 25 | Pinto Joshua | CTO | Sale | $0.00 | 2.69K | $0.027 | -- |
| Nov 13, 25 | Stonehouse Jon P | CTO | Purchase | -- | 2.69K | -- | 2.69K |
| Nov 13, 25 | Stonehouse Jon P | CTO | Sale | $19.81 | 47.73K | $945.53K | -- |
| Nov 13, 25 | Stonehouse Jon P | CTO | Sale | $0.00 | 2.69K | $0.027 | -- |
| Nov 13, 25 | Hubbard Brian | Officer | Purchase | -- | 17.00K | -- | 17.00K |
| Nov 13, 25 | Hubbard Brian | Officer | Sale | $0.00 | 17.00K | $0.17 | -- |
| Nov 13, 25 | Hubbard Brian | Officer | Sale | $0.26 | 319.19K | $82.99K | -- |
| Nov 13, 25 | Hubbard Brian | Officer | Sale | $29.25 | 120.00K | $3.51M | -- |
| Nov 13, 25 | Hubbard Brian | Officer | Sale | $8.18 | 106.39K | $870.31K | -- |
| Nov 13, 25 | Visioli Christopher | CFO | Purchase | -- | 21.25K | -- | 21.25K |
| Nov 13, 25 | Visioli Christopher | CFO | Sale | $29.25 | 150.00K | $4.39M | -- |
| Nov 13, 25 | Visioli Christopher | CFO | Sale | $4.33 | 255.35K | $1.11M | -- |
| Nov 13, 25 | Visioli Christopher | CFO | Sale | $0.00 | 21.25K | $0.213 | -- |
| Nov 13, 25 | Visioli Christopher | CFO | Sale | $8.18 | 340.46K | $2.79M | -- |
| Nov 13, 25 | MEANWELL CLIVE | CTO | Purchase | -- | 5.38K | -- | 5.38K |
| Nov 13, 25 | MEANWELL CLIVE | CTO | Sale | $8.18 | 297.91K | $2.44M | -- |
| Nov 13, 25 | MEANWELL CLIVE | CTO | Sale | $0.00 | 12.77M | $127.675 | -- |
| Nov 13, 25 | MEANWELL CLIVE | CTO | Sale | $29.25 | 32.25K | $943.31K | -- |
| Nov 13, 25 | Bernard Christopher Whitten | CTO | Purchase | -- | 21.25K | -- | 21.25K |
| Nov 13, 25 | Bernard Christopher Whitten | CTO | Sale | $4.33 | 1.70M | $7.37M | -- |
| Nov 13, 25 | Bernard Christopher Whitten | CTO | Sale | $29.25 | 348.75K | $10.20M | -- |
| Nov 13, 25 | Bernard Christopher Whitten | CTO | Sale | $0.00 | 12.77M | $127.675 | -- |
| Nov 10, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 860.72K | -- | 2.23M |
| Nov 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 2.62M | -- | 3.09M |
| Nov 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 2.36M | -- | 2.36M |
| Nov 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | $61.23 | 193 | $11.82K | 2.36M |
| Nov 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 47.84K | -- | 47.84K |
| Nov 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 2.12K | -- | 3.01K |
| Nov 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 2.36M | -- | -- |
| Oct 6, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 633.72K | -- | 473.83K |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 1.11M | -- | 1.11M |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 1.35M | -- | 3.19M |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 1.13M | -- | 1.13M |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 997.31K | -- | 997.31K |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 20.25K | -- | 20.25K |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 895 | -- | 895 |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 997.04K | -- | 268 |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | $36.00 | 268 | $9.65K | -- |
| Sep 2, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 20.25K | -- | -- |
| May 22, 25 | Pinto Joshua | CTO | Purchase | $4.33 | 148.95K | $644.97K | 148.95K |
| May 20, 25 | Pinto Joshua | CTO | Purchase | $29.25 | 16.13K | $471.66K | 16.13K |
| May 22, 25 | Pinto Joshua | CTO | Sale | $4.33 | 148.95K | $644.97K | -- |
| May 20, 25 | MEANWELL CLIVE | CTO | Purchase | $29.25 | 32.25K | $943.31K | 32.25K |
| May 20, 25 | Burow Kristina | CTO | Purchase | $29.25 | 16.13K | $471.66K | 16.13K |
| May 20, 25 | Visioli Christopher | CFO | Purchase | $29.25 | 150.00K | $4.39M | 150.00K |
| May 20, 25 | Lang Matthew | Officer | Purchase | $29.25 | 46.88K | $1.37M | 46.88K |
| May 20, 25 | Bernard Christopher Whitten | CEO | Purchase | $29.25 | 348.75K | $10.20M | 348.75K |
| May 20, 25 | BERNS PAUL L | CTO | Purchase | $29.25 | 24.19K | $707.50K | 24.19K |
| May 20, 25 | Hubbard Brian | Officer | Purchase | $29.25 | 120.00K | $3.51M | 120.00K |
| May 20, 25 | Marso Steven | Officer | Purchase | $29.25 | 120.00K | $3.51M | 120.00K |
| Apr 28, 25 | Stonehouse Jon P | CTO | Purchase | $19.81 | 47.73K | $945.53K | 47.73K |
| Apr 28, 25 | Lang Matthew | Officer | Sale | $17.16 | 325.00K | $5.58M | -- |
| Apr 28, 25 | Stonehouse Jon P | -- | Sale | -- | -- | -- | -- |
| Feb 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 3.12M | -- | 4.54M |
| Feb 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Purchase | -- | 1.42M | -- | 1.42M |
| Feb 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 1.42M | -- | -- |
| Feb 3, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 3.12M | -- | -- |
| Feb 3, 25 | Burow Kristina | CTO | Purchase | $18.00 | 1.43M | $25.78M | 18.50M |
| Feb 3, 25 | Burow Kristina | CTO | Purchase | -- | 16.01M | -- | 17.07M |
| Feb 3, 25 | Burow Kristina | CTO | Purchase | $18.00 | 790.00K | $14.22M | 8.31M |
| Feb 3, 25 | Burow Kristina | CTO | Purchase | -- | 7.52M | -- | 7.52M |
| Feb 3, 25 | Burow Kristina | CTO | Sale | -- | 15.00M | -- | -- |
| Feb 3, 25 | Burow Kristina | CTO | Sale | -- | 19.93M | -- | -- |
| Feb 3, 25 | Burow Kristina | CTO | Sale | -- | 2.68M | -- | -- |
| Feb 3, 25 | BERNS PAUL L | CTO | Purchase | $18.00 | 790.00K | $14.22M | 8.31M |
| Feb 3, 25 | BERNS PAUL L | CTO | Purchase | -- | 7.52M | -- | 7.52M |
| Feb 3, 25 | BERNS PAUL L | CTO | Sale | -- | 15.00M | -- | -- |
| Feb 3, 25 | BERNS PAUL L | CTO | Sale | -- | 2.68M | -- | -- |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Purchase | $18.00 | 1.43M | $25.78M | 18.50M |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Purchase | -- | 16.01M | -- | 17.07M |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Purchase | $18.00 | 790.00K | $14.22M | 8.31M |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Purchase | -- | 7.52M | -- | 7.52M |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | 19.93M | -- | -- |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | 15.00M | -- | -- |
| Feb 3, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | 2.68M | -- | -- |
| Jan 30, 25 | Wellington Biomedical Innovation Master Investors (Cayman) II L.P. | 10 percent owner | Purchase | -- | 1.86M | -- | 1.86M |
| Jan 30, 25 | Wellington Biomedical Innovation Master Investors (Cayman) II L.P. | 10 percent owner | Sale | -- | 4.37M | -- | -- |
| Jan 30, 25 | Burow Kristina | CTO | Sale | -- | -- | -- | 1.06M |
| Jan 30, 25 | Burow Kristina | CTO | Sale | $8.18 | 148.95K | $1.22M | -- |
| Jan 30, 25 | Burow Kristina | CTO | Sale | -- | 8.48M | -- | -- |
| Jan 30, 25 | Burow Kristina | CTO | Sale | -- | 6.38M | -- | -- |
| Jan 30, 25 | Burow Kristina | CTO | Sale | -- | 1.14M | -- | -- |
| Jan 30, 25 | Marso Steven | Officer | Sale | $0.26 | 21.28K | $5.53K | -- |
| Jan 30, 25 | BERNS PAUL L | CTO | Sale | -- | -- | -- | 957.56K |
| Jan 30, 25 | BERNS PAUL L | CTO | Sale | $8.18 | 223.43K | $1.83M | -- |
| Jan 30, 25 | BERNS PAUL L | CTO | Sale | -- | 6.38M | -- | -- |
| Jan 30, 25 | BERNS PAUL L | CTO | Sale | -- | 1.14M | -- | -- |
| Jan 30, 25 | Validae Health, L.P. | 10 percent owner | Sale | -- | -- | -- | 12.77M |
| Jan 30, 25 | Visioli Christopher | CFO | Sale | $4.33 | 255.35K | $1.11M | -- |
| Jan 30, 25 | Visioli Christopher | CFO | Sale | $8.18 | 340.46K | $2.79M | -- |
| Jan 30, 25 | Hubbard Brian | Officer | Sale | $0.26 | 319.19K | $82.99K | -- |
| Jan 30, 25 | Hubbard Brian | Officer | Sale | $8.18 | 106.39K | $870.31K | -- |
| Jan 30, 25 | MEANWELL CLIVE | CTO | Sale | -- | -- | -- | 12.77M |
| Jan 30, 25 | MEANWELL CLIVE | CTO | Sale | $8.18 | 297.91K | $2.44M | -- |
| Jan 30, 25 | Bernard Christopher Whitten | CTO | Sale | -- | -- | -- | 12.77M |
| Jan 30, 25 | Bernard Christopher Whitten | CTO | Sale | $4.33 | 1.70M | $7.37M | -- |
| Jan 30, 25 | Pinto Joshua | CTO | Sale | $4.33 | 148.95K | $644.97K | -- |
| Jan 30, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | -- | -- | 1.06M |
| Jan 30, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | 8.48M | -- | -- |
| Jan 30, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | 6.38M | -- | -- |
| Jan 30, 25 | ARCH Venture Partners XII, LLC | 10 percent owner | Sale | -- | 1.14M | -- | -- |
| Jan 30, 25 | Wellington Biomedical Innovation Master Investors (Cayman) II L.P. | 10 percent owner | Sale | -- | 1.86M | -- | -- |
| Jan 30, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 1.42M | -- | -- |
| Jan 30, 25 | FMR LLC | 10 percent owner, other: See Remark 1 | Sale | -- | 3.12M | -- | -- |